I have a 17 '' laptop and bought it for this I can not complain, there is enough air under the laptop so it runs much quieter and is not as fast hot. What I am a little disappointed, the operation because you have to look first how this works, but if you have got it even is the even the slightest problem.
So on the whole I advise each of not spend so much money want to opt for this one, it is reliable and I can after a year where I him now ABSOLUT did not complain because he also has an advantage since one him can be folded and it is then about 5 cm thick, you can even wrap it and take it with class :-)